CN112602375B

CN112602375B - Fabric contact device, system, in particular heating system for a motor vehicle, and method for manufacturing such a system

Info

Publication number: CN112602375B
Application number: CN201980055282.6A
Authority: CN
Inventors: C.穆思; U.布鲁梅尔; M.巴尔特斯
Original assignee: TE Connectivity Germany GmbH
Current assignee: TE Connectivity Germany GmbH
Priority date: 2018-08-22
Filing date: 2019-08-16
Publication date: 2023-06-16
Anticipated expiration: 2039-08-16
Also published as: KR102650934B1; CN112602375A; JP2021535550A; WO2020038842A1; JP7109651B2; KR20210043678A; US20210175641A1; DE102018120473B4; EP3841841A1; DE102018120473A1; EP3841841B1

Abstract

The fabric contact device of the present invention has a first contact portion, a second contact portion and a retaining means. The first contact portion has a first contact surface on a first upper side facing the second contact portion, and the second contact portion has a second contact surface on a lower side facing the first contact portion. A fabric having conductive yarns is disposed between the first contact surface and the second contact surface. The first and/or second contact surfaces are formed to contact the conductive yarn. The first contact portion is connected to the second contact portion at a first side. The retaining device has a first retaining element. The first retaining element is connected to the second side of the first contact portion at a first fixed end. The first retaining element is guided laterally beyond the second contact portion by a first portion bordering the first fixed end. A second portion bordering the first portion on a side of the first holding element opposite to the first fixed end is joined to and connected to the first contact portion behind the second contact portion.

Description

Fabric contact device, system, in particular heating system for a motor vehicle, and method for manufacturing such a system

Technical Field

The present invention relates to a fabric contact device and system, in particular a heating system for a motor vehicle, and to a method for manufacturing such a system.

Background

The present invention relates to a fabric contact device, a system for a motor vehicle, in particular a heating system for a motor vehicle, and to a method for manufacturing a system.

Heating systems for motor vehicles are known. The heating system has a fabric comprising two electrodes. The cable for contact is soldered to the electrode. The welding operation is complex and high requirements are placed on the process safety.

Disclosure of Invention

It is an object of the present invention to provide a fabric contact device, an improved system and an improved method for manufacturing such a system.

This problem is solved by the fabric contact device according to the invention, by the system according to the invention for a motor vehicle, in particular by the heating system, and by the method according to the invention for manufacturing such a system. .

It has been realized that an improved fabric contact device may be provided by a fabric contact device having a first contact part, a second contact part and a holding means. The first contact portion has a first contact surface on a first upper side facing the second contact portion, and the second contact portion has a second contact surface on a lower side facing the first contact portion. A fabric having at least one conductive yarn may be disposed between the first contact surface and the second contact surface. The first and/or second contact surfaces are formed to contact the conductive yarn. The first contact portion is connected to the second contact portion on the first side. The holding device has at least one first holding element, wherein the first holding element is connected to the second side of the first contact portion at a first fixed end. The first holding element is guided laterally beyond the second contact portion by a first portion bordering the first fixed end, wherein a second portion bordering the first portion on a side of the first holding element opposite the first fixed end engages behind the second contact portion and is connected to the first contact portion.

An advantage of this construction is that the fabric contact device can be connected to the fabric in a fully automated manner. Furthermore, expensive welding of the electrodes for connecting the fabric contact device to the fabric can be dispensed with. As a result, excellent process safety from the fabric contact device and the fabric production system is ensured.

In another embodiment, a hinge is arranged between the first contact portion and the second contact portion. The hinge connects the first contact portion to the second contact portion. The second contact portion is pivotable between a first position and a second position. In the first position, the second contact portion is folded against the first contact portion. In the second position, the second contact portion is folded away from the first contact portion. By folding the first contact portion away from the second contact portion, the fabric may be positioned particularly well between the first contact portion and the second contact portion in the manufacture of the system. Furthermore, the fabric contact device can be produced particularly simply and inexpensively by stamping and bending methods.

In another embodiment, the first retaining element tapers from the first fixed end to the end of the first retaining element. The advantage of this configuration is that the holding element can be guided particularly simply through the recess in the fabric. In particular, this avoids that the yarns of the fabric get stuck on the holding element and thus interrupt the process of the manufacturing system.

In another embodiment, the second contact surface is formed in a wave-like manner. Additionally or alternatively, the first contact portion is formed in a plate-like manner and the first contact surface is formed in a substantially planar manner.

In a further embodiment, the holding means has a second holding element which is connected to the third side of the first contact portion by a second fixed end. The second retaining element is guided laterally beyond the second contact portion by a third portion bordering the second fixed end. A fourth portion bordering the third portion on a side of the second holding member opposite to the second fixed end is engaged behind the second contact portion and connects the first contact portion to the second contact portion. By the relative arrangement of the first holding element and the second holding element, a lateral upward bending of the second contact portion with respect to the first contact portion is avoided, so that the first contact surface and the second contact surface extend substantially parallel to each other. As a result, it is ensured that the contact surface is supported flat against the fabric on both sides. Furthermore, since an upward bending of the contact surface due to the rearward engagement of the holding element is reliably avoided, a good clamping contact of the contact surface on the fabric can be ensured.

In another embodiment, the second side is disposed opposite the third side. The first side is disposed between the second side and the third side. The second portion extends at least partially in the direction of the second retaining element and the fourth portion extends at least partially in the direction of the first retaining element.

In a further embodiment, the second contact portion has at least one first notch and one second notch arranged offset with respect to the first notch on the second upper side. The first notch and the second notch extend between a fourth side of the second contact portion facing the second side and a fifth side of the second contact portion facing the third side. The first and second indentations are formed in an elongated manner. The second notch is parallel to the first notch. The second portion of the first retaining element engages the first notch and the fourth portion engages the second notch. This configuration has the advantage of avoiding sliding of the second contact portion in the longitudinal direction. A particularly good form-fitting connection between the holding element and the second contact portion is thereby ensured.

In another embodiment, the second contact portion has at least two protrusions spaced apart from each other on the side.

The protrusions are parallel to each other.

Another notch for receiving the substance of the second yarn of the fabric is arranged between the protrusions.

In another embodiment, the fabric contact device has an abutment portion. The abutment portion is connected to a first side of the first contact portion. The abutment portion may be electrically connected to an electrical conductor of the cable.

In another embodiment, the abutment portion circumferentially defines the recess. The recess is preferably formed in a rectangular shape. The frame width of the abutment portion is smaller than the maximum extent of the recess in at least one spatial direction.

A system, in particular a heating system for a motor vehicle, has a fabric and a fabric contact device. The fabric contact device is formed as described above. The fabric has at least one first electrode having at least one electrically conductive contact area. The contact region of the first electrode is arranged between the first contact portion and the second contact portion. At least one of the two contact surfaces is in electrical contact with the contact portion. The first portion engages through the fabric and mechanically connects the fabric to the fabric contact device.

In another embodiment, a fabric has a first yarn and at least one second yarn. In addition, the fabric has a first fabric portion, a second fabric portion and a third fabric portion. The first yarn has a conductive substance. The second yarn has an electrically insulating substance. To form the first electrode, the first yarn and the second yarn are interwoven in a first fabric portion of the fabric. To form the second electrode, the first yarn and the second yarn are interwoven in a third fabric portion spaced apart from the first fabric portion. Only the second yarns are interwoven in a second fabric portion disposed between the first fabric portion and the third fabric portion. The second fabric portion electrically insulates the first fabric portion from the third fabric portion. The fabric contact means is arranged spaced apart from the second electrode. At least one notch is introduced in the second fabric portion. The first portion engages through the recess.

The system may be particularly well produced by the provided fabric contact device and fabric. The second contact portion is located at the second position. The contact region of the first electrode is located above the first contact portion. The first retaining element is pushed through the fabric such that the first portion engages through the fabric. The second contact portion pivots from the second position to the first position. The second contact portion and the second contact surface are located on and electrically contact the first contact region. Additionally or alternatively, the first contact region is located on and in electrical contact with a first contact face of the first contact portion. The second portion of the first retaining element is molded, preferably crimped.

In another embodiment, the fabric contact device is heated above the melting temperature and/or glass transition temperature of the second substance. The second yarn is fused between the first contact portion and the second contact portion, and the melted second substance is displaced due to the protrusion and the holding force acting on the contact portion. The second substance flows into the other gap. The second substance solidifies in the other gap.

Drawings

The invention is explained in more detail below with reference to the drawings. In the drawings:

Fig. 1 shows a cross-sectional view of a perspective view of a system.

Figure 2 shows a plan view of the fabric of the system of figure 1.

Fig. 3 shows a perspective view of the fabric contact device.

Fig. 4 shows a cross-section through the fabric contact device shown in fig. 3 along the cross-section A-A shown in fig. 3.

Fig. 5 shows a cross-section through the fabric contact device shown in fig. 3 and 4 along section B-B shown in fig. 3.

Fig. 6 shows a perspective view of the system in an installed state.

Fig. 7 shows a perspective view of the system.

Fig. 8 shows a flow chart of a method for manufacturing the system shown in fig. 1 to 7.

Fig. 9 shows a side view of the fabric contact device during a first method step.

Fig. 10 shows a plan view of the fabric after the second method step.

Fig. 11 shows a side view of the system during a third method step.

Fig. 12 shows a side view of the system during a fourth method step.

Fig. 13 shows a side view of the system during a fifth method step.

Fig. 14 shows a side view of the system during a sixth method step.

Fig. 15 shows a side view of the system during a seventh method step.

Fig. 16 shows a side view of the system during an eighth method step.

Fig. 17 shows a cross-sectional view of the front view of the system after an eighth method step.

Fig. 18 shows a cross-sectional view of a front view of a variant of the system after an eighth method step. And

fig. 19 shows a side view of the system during a ninth method step.

Detailed Description

In the following figures, reference is made to a coordinate system to facilitate understanding. In this case, the coordinate system includes an x-axis (longitudinal direction), a y-axis (transverse direction), and a z-axis (vertical direction). The coordinate system is formed, for example, as a right-hand system.

Fig. 1 shows a cross-sectional view of a perspective view of a system 10.

The system 10 may be formed as a heating system for a motor vehicle, particularly seat heating. The system 10 has a fabric 15 and a fabric contact device 20. The fabric 15 has an edge 25 that defines the fabric 15. In this embodiment, the edge 25 extends in the y-direction as an example. The fabric 15 further comprises a first fabric portion 30 and at least one second fabric portion 35.

The first and

second fabric portions

30, 35 extend in this case parallel to each other and in this embodiment, for example, in the longitudinal direction. In the transverse direction, the first fabric portion 30 is formed wider than the second fabric portion 35. In this case, the second fabric portion 35 is arranged directly laterally adjacent to the first fabric portion 30 in the transverse direction.

In the first fabric portion 30, the fabric 15 has a first yarn 40 and a second yarn 45. The first yarn 40 has a conductive substance. The first yarn 40 may have one or more threads, for example. In this case the wire has a smaller diameter, for example in the range of 0.02mm to 0.08 mm. In this embodiment, the first yarn 40 has a diameter of 0.05 mm. The second yarn 45 has an electrically insulating substance, such as plastic.

In the first fabric portion 30, the first yarns 40 interweave with the second yarns 45 to form first electrodes 50. In this case, for example, the first yarns 40 may be interwoven substantially in the machine direction and the second yarns 45 may be interwoven in the cross direction. Different interweaving of the first yarn 40 with the second yarn 45 is also conceivable.

In this embodiment, the first electrode 50 extends to the edge 25 of the fabric 15. Adjacent to the edge 25, the first electrode 50 has a first fabric contact area 51.

The fabric 15 may also have a first secondary electrode 55, preferably having a plurality of first secondary electrodes 55. In this embodiment, the first secondary electrode 55 extends parallel to the y-axis. The first secondary electrode 55 crosses the first electrode 50 and electrically contacts the first electrode 50. The first secondary electrode 55 may also be woven from the first yarn 40 into the second yarn 45. In this case, the first sub-electrode 55 is formed to be significantly narrower in the longitudinal direction than the first electrode 50 is formed in the transverse direction. To form the first secondary electrode, for example, the first yarn 40 may extend in the transverse direction. The first plurality of secondary electrodes 55 are preferably provided so as to be offset in the longitudinal direction and spaced apart from each other. The first secondary electrodes 55 are electrically insulated from each other by the second yarn 45 and are electrically connected to each other only by the first electrode 50.

The fabric contact device 20 includes a first contact portion 60 and a second contact portion 65. In fig. 1, the first contact portion 60 is arranged below a fabric contact area 51 of the first electrode 50, said fabric contact area 51 bordering the edge 25.

The second contact portion 65 is connected to the first contact portion 60 by a hinge 70. The second contact portion 65 is pivotable about a pivot axis 75 between a first position and a second position, as shown in fig. 1. The pivot axis 75 extends parallel to the edge 25 and in this embodiment extends, for example, in the y-direction.

Fig. 2 shows a plan view of the fabric 15 of the system 10 shown in fig. 1.

The fabric 15 has a third fabric portion 80 in addition to the first fabric portion 30 and the second fabric portion 35. The third fabric portion 80 is disposed in spaced relation to the first fabric portion 30. The second fabric portion 35 is disposed between the first fabric portion 30 and the third fabric portion 80.

To form the second electrode 85, the first yarn 40 is interwoven with the second yarn 45 in the third fabric portion 80. In this case, the first yarns 40 of the third fabric portion 80 are electrically disconnected from the first yarns 40 of the first fabric portion 30 and are electrically insulated from the first fabric portion 30 by the second fabric portion 35. The second electrode 85 may have a second fabric contact area 86, the second fabric contact area 86 bordering the edge 25. In addition, the fabric 15 may have a second secondary electrode 90, the second secondary electrode 90 extending parallel to the first secondary electrode 55. Accordingly, the first secondary electrode 55 and the second secondary electrode 90 extend in the y-direction. In particular, the second secondary electrodes 90 may each be arranged between two first secondary electrodes 55.

In this case, the first sub-electrode 55 crosses the first electrode 50 and the second electrode 85 in a plan view. In this case, the first secondary electrodes 55, more precisely the first yarns 40 of the first secondary electrodes 55, are interwoven with the second yarns 45 such that the first secondary electrodes 55 are not in electrical contact with the second electrodes 85 and are electrically insulated by the second yarns 45, in particular in the crossing areas between the first secondary electrodes 55.

The second secondary electrode 90 is also guided crosswise by the second electrode 85 and is electrically connected to the second electrode 85. In the crossing region in the plan view of the second secondary electrode 90 and the first electrode 50, the first electrode 50 and the second secondary electrode 90 are electrically insulated from each other. More precisely, the first yarn 40 and the second yarn 45 are interwoven in such a way that, in order to form the second secondary electrode 90, the first yarn 40 is not in electrical contact with the first yarn 40 to form the first electrode 50.

In addition, the fabric 15 has, for example, resistance electrodes 95 woven into the second yarn 45 at regular intervals, the resistance electrodes 95 having, for example, a plastic core surrounded by carbon. The individual resistor electrodes 95 are arranged offset relative to one another in each case in the transverse direction and extend substantially in the longitudinal direction. In this case, the resistive electrode 95 is carried by the second yarn 45. The resistive electrode 95 is electrically connected to the

secondary electrodes

55, 90. If the first electrode 50 and the second electrode 85 are electrically connected to a power source, the current circuit between the first electrode 50 and the second electrode 85 is thus closed by the resistive electrode(s) 95 and the second electrode 85 of the first secondary electrode 55, the second secondary electrode 90. In this case, the resistive electrode 95 is heated and causes heating of the fabric 15. As a result, the fabric 15 is particularly suitable for forming a heating system in a motor vehicle, for example for heating a seating area or other surface, for example in the interior of a motor vehicle.

At least one first recess 100 is arranged in the third fabric portion 80, preferably a first recess 100 and a second recess 105 on both sides of the

electrodes

50, 85, respectively. The

recesses

100, 105 extend substantially in the longitudinal direction. The

notches

100, 105 are formed narrow and are introduced into the fabric 15, for example, by cutting the fabric 15 during production of the system 10. However, the

notches

100, 105 may also be introduced into the fabric 15 by a stamping method. This has the advantage that the width in the transverse direction of the

recesses

100, 105 can be freely selected by the geometry of the stamping tool. The

recesses

100, 105 are arranged spaced apart from the

electrodes

50, 85 in the lateral direction, and may also cut through one or more

secondary electrodes

55, 90.

In the first contact region 56 and/or the second contact region 86, the second yarn 45 may be surrounded by flux (not shown in fig. 2). The flux may have, for example, a fluxing agent and a solderable, electrically conductive third substance. The third substance may have tin, for example.

Fig. 3 shows a perspective view of the fabric contact device 20.

The second contact portion 65 is shown in the second position in fig. 3. In this case, the second contact portion 65 is folded away from the first contact portion 60 by means of the hinge 70. As a result, the second contact portion 65 is arranged obliquely with respect to the first contact portion 60.

The first contact portion 60 is formed in a plate-like manner and extends in the xy plane in fig. 3. The first contact portion 60 has a first contact surface 115 on the first upper side 110. The first contact surface 115 is formed in a substantially planar manner and in the mounted state bears against the underside of the fabric 15 in the first fabric contact area 51. The first contact surface 115 extends substantially over the entire first upper side 110. In this case, the first contact portion 60 has a rectangular configuration in a plan view. In this case, the first contact portion 60 is connected to the hinge 70 on a first side 120, which extends in the y-direction and may also be referred to as an end face. In the lateral direction, the hinge 70 is formed, for example, narrower than the first maximum range b of the first contact portion 60.

On the upper side, the first contact section 60 can have one or more groove-shaped first recesses 125 on the first contact surface 115. The first recess 125 is formed in an elongated manner and extends substantially in the lateral direction. In this case, the first recess 125 is arranged at an angle θ with respect to the y-axis, for example, and is thus inclined with respect to the pivot axis 75. The value of the angle θ is preferably 20 ° to 45 °. In fig. 3, as an example, a plurality of first concave portions 125 are arranged adjacent to each other in the longitudinal direction. The first recesses 125 are arranged spaced apart and extend parallel to each other. Of course, it is also conceivable for the first recesses 125 to intersect one another or to have a different configuration. The first concave portion 125 is formed in a downward closing manner. Of course, the first concave portion 125 may be formed as a through hole.

The second contact portion 65 has a second contact surface 135 on the underside 130. In fig. 3, the second contact portion 65 is depicted in a second position, the second contact portion 65 being folded away from the first contact portion 60 about the pivot axis 75.

The second contact portion 65 is formed at least partially in a plate shape. In addition, the second contact portion 65 is provided with a wave-shaped profile 106. The wavy profile 106 extends parallel to the pivot axis 75. The wave profile 106 is continuous and is thus shown on the upper and lower sides of the second contact portion 65. The wave profile 106 is uniformly formed. In this case, the waveform profile 106 fluctuates in the following manner: when the second contact portion 65 protrudes in the first position and when the first contact portion 60 protrudes in the z direction into the xy projection plane, the first concave portion 125 and the wave profile 106 cross each other on the xy projection plane.

Fabric contact device 20 also has a retaining means 140. The holding means 140 are formed to connect the second contact portion 65 to the first contact portion 60 in a form-fitting manner in the first position of the second contact portion 65 and to prevent the second contact portion 65 from bending upwards in the direction of the second position.

In this case, in this embodiment, the holding device 140 has, for example, a first holding element 145, a second holding element 150, a third holding element 155 and a fourth holding element 160. The number of retaining

elements

145, 150, 155, 160 is exemplary. Of course, a different number of holding

elements

145, 150, 155, 160 may also be selected. In particular, it is sufficient to provide only one of the retaining

elements

145, 150, 155, 160.

On the second side 165 of the first contact portion 60, the first retaining element 145 is connected to the second side 165 of the first contact portion 60 by a first fixed end 170. In this embodiment, for example, the second side 165 is oriented at a right angle relative to the first side 120 of the first contact portion 60 and extends parallel to the x-axis in this embodiment. Of course, the second side 165 may also be oriented obliquely with respect to the first side 120.

The second retaining element 150 is arranged on the third side 175 of the first contact portion 60. The third side 175 is disposed opposite the second side 165. Further, the first side 120 is arranged between the second side 165 and the third side 175 in the lateral direction. In this embodiment, the third side 175 and the second side 165 extend, for example, in parallel. In this case, the second holding member 150 is connected to the third side 175 of the first contact portion 60 through the second fixed end 180. The second holding element 150 is arranged offset in the longitudinal direction relative to the first holding element 145. In this case, the first minimum distance a1 from the first fixed end 170 of the first holding element 145 to the pivot axis 75 is greater than the second minimum distance a2 from the second fixed end 180 of the second holding element 150 to the pivot axis 75. However, the first and second retaining

elements

145, 150 are oriented relative to each other in the longitudinal direction such that when projected in the y-direction into the xz projection plane, the first and second retaining

elements

145, 150 at least partially overlie each other on the xz projection plane.

On the second side 165, for example, the third holding element 155 is also arranged offset and spaced apart from the first holding element 145 in the longitudinal direction. The third retaining element 155 is connected to the second side 165 by a third fixed end 185.

The fourth holding element 160 is connected to the third side 175 by a fourth fixed end 190. The fourth holding element 160 is arranged offset in the longitudinal direction relative to the second holding element 150. In this case, the third holding element 155 and the fourth holding element 160 are arranged on the sides of the first holding element 145 and the second holding element 150, respectively, remote from the first side 120.

In this embodiment, the retaining

elements

145, 150, 155, 160 are formed substantially identically to each other. In particular, the first and third holding

elements

145 and 155 and the second and fourth holding

elements

150 and 160 are formed identically to each other.

In the longitudinal direction, the fourth holding element 160 is arranged between the first holding element 145 and the third holding element 155 when projected in the y-direction into the xz projection plane.

In the disassembled state of the fabric contact device 20, the holding

elements

145, 150, 155, 160 extend upwards perpendicular to the first contact surface 115.

On the side remote from the first side 120, the first contact portion 60 may be connected to the conveyor belt 200 by a connecting portion 195, which connecting portion 195 is formed much narrower in the transverse direction than the first and/or

second contact portions

60, 65. The conveyor belt 200 has at least one, preferably a plurality of second recesses 205 through which the conveyor belt 200 can be conveyed through the manufacturing machine. This configuration is particularly suited for mass production of the system 10, wherein the fabric contact device 20 may be automatically transported by the conveyor belt 200. In this case, a number of fabric contact devices 20 may be secured to the conveyor belt 200. At the connecting portion 195, the fabric contact device 20 is separated from the conveyor belt 200, for example by stamping.

Bordering the first side 120, the first contact portion 60 is connected to the abutment portion 210. The abutment portion 210 is for contacting an electrical conductor 215 of the cable 220. The configuration of the abutment portion 210 is exemplary.

Fabric contact device 20 may be electrically connected to a power source by cable 220. The electrical conductor 215 may be connected to the abutment portion 210, for example by a crimped connection or a soldered connection. Different electrical connections of the electrical conductor 215 to the abutment portion 210 are also conceivable. The abutment portion 210 may also be formed as a contact element, the abutment portion 210 being arranged as a contact element in a construction, for example in a contact arrangement (not shown in fig. 3), in order to provide an electrical connection to the cable 220 by means of the contact arrangement.

Accordingly, the abutting portion 210 may be formed in a frame-shaped manner, as shown in fig. 3. Different configurations of abutment portions 210 are also contemplated. The abutment section 210 is formed in a frame shape and defines a third recess 225 in the circumferential direction, and the second contact portion 65 is bent out of the third recess 225.

The abutment portion 210 has a frame width t that is smaller than the second maximum extent t of the second recess 225 in the longitudinal and/or transverse direction.

Fig. 4 shows a cross-section through the fabric contact device 20 shown in fig. 3 along the cross-section A-A shown in fig. 3.

In this embodiment, the material thickness d of the fabric contact device 20 is substantially constant over all elements of the fabric contact device 20 (in this embodiment having the first recess 125). As a result, the fabric contact device 20 can be formed in a unitary and material-uniform manner and can be formed particularly inexpensively by, for example, stamping and bending methods. In this embodiment, the material thickness d in the region of the hinge 70 is substantially the same as the material thickness d in the first and

second contact portions

60, 65. It is of course also conceivable to choose the material thickness d smaller, in particular in the region of the hinge 70, so that the hinge 70 is formed in the manner of a film hinge.

The retaining

elements

145, 150, 155, 160 are formed substantially identically to each other. In this case, the retaining

elements

145, 150, 155, 160 taper from the fixed ends 170, 180, 185, 190 to the tip 230. As shown in fig. 4, the taper may be formed in two stages, the taper in the lower region 235, adjoining the fixed ends 170, 180, 185, 190, first being formed to be flatter than in the upper region 240, the upper region 240 adjoining the tip 230 in a downward manner. In the upper region 235, the retaining

elements

145, 150, 155, 160 taper more strongly to the tip 230. For example, the tip 230 is formed in a rounded manner.

The second contact portion 65 has at least one first notch 250 formed by the wave-shaped profile 106 on a second upper side 245 arranged on a side of the second contact portion 65 remote from the first upper side 110. The second contact portion 65 preferably has on the second upper side 245 at least a desired number of

indentations

250, 255, 260, 265 corresponding to the number of retaining

elements

145, 150, 155, 160. The

indentations

250, 255, 260, 265 are formed by the wave-shaped profile 106 of the second contact portion 65. Of course, the number of

indentations

250, 255, 260, 265 may not be equal to the number of retaining

elements

145, 150, 155, 160. In particular, the number of

indentations

250, 255, 260, 265 may be greater than the number of retaining

elements

145, 150, 155, 160.

The

indentations

250, 255, 260, 265 extend in the y-direction and are formed in an elongated manner. In which case they extend parallel to the pivot axis 75 and parallel to the first side 120. The first through

fourth indentations

250, 255, 260, 265 are each molded with a protrusion 270 on the second contact surface 135. In each case a further recess 275 is arranged between the projections 270 on the second contact surface 135.

Fig. 5 shows a cross-section through the fabric contact device 20 shown in fig. 3 and 4 along section B-B shown in fig. 3.

The holding

elements

145, 150, 155, 160 can have a bevel 285 in the further region 280, which adjoins the end 230 of the holding

element

145, 150, 155, 160 on the underside. The chamfer 285 tapers the retaining

elements

145, 150, 155, 160 in the transverse direction to the tip 230. The other region 280 is formed to be shorter than the upper region 240 in the vertical direction. The chamfer 285 may be arranged on the side facing away from the first contact surface 115, for example as shown on the second holding element 150 in fig. 5. The chamfer 285 may also be omitted or may be provided on the side of the holding

element

145, 150, 155, 160 facing the first contact surface 115.

The spacing between the first and third retaining

elements

145, 155 in the transverse direction is greater than the third maximum extent b1 of the second contact portion 65 with respect to the second and fourth retaining

elements

150, 160 before the second contact portion 65 is folded against the first contact portion 60. The first maximum range b may be the same as the third maximum range b1. As a result, it is ensured that the second contact portion 65 can be pivoted from the second position to the first position without abutting against the holding

elements

145, 150, 155, 160.

Fig. 6 shows a perspective view of the system 10 in an installed state. In this case, the fabric contact device 20 is separated from the conveyor belt 200 at the connection portion 195.

The fabric 15 is disposed between the first contact surface 115 and the second contact surface 135. In this case, the fabric 15 has a fabric upper side 290 on the second contact surface 135 and a fabric lower side 295 on the first contact surface 115. In this case, the first yarns 40 may make electrical contact with the respective contact surfaces 115, 135 on the fabric upper side 290 and/or the fabric lower side 295. In order to achieve a particularly low contact resistance between the fabric 15 and the fabric contact device 20, it is advantageous if the first yarns 40 are in electrical contact with both the second contact surface 135 on the fabric upper side 290 and the first contact surface 115 on the fabric lower side 295.

In the first position, the second contact portion 65 is folded against the first contact portion 60, the second contact portion 65 extending parallel to the first contact portion 60. The retaining means 140 engage behind the second contact portion 65 on the rear side and fix the second contact portion 65 to the first contact portion 60 and prevent the second contact portion 65 from bending upwards about the pivot axis 75 after insertion into the fabric 15.

Fig. 7 shows a perspective view of the system 10.

In the secured state of the fabric contact device 20 on the fabric 15, the first portion 300 of the first holding element 145, which adjoins the first fixed end 170 of the first holding element 145, is guided laterally beyond the fourth side 305 of the second contact portion 65 facing the second side 165. In this case, a gap 310 may be provided between the first holding element 145 and the fourth side 305 of the second contact portion 65. The first portion 300 may also bear against the fourth side 305. The second side 165 and the fourth side 305 extend in parallel and are arranged above each other. As a result, the first contact portion 60 and the second contact portion 65 have the same maximum extent in the lateral direction.

The first notch 250 and at least the second notch 255 (preferably all

notches

250, 255, 260, 265) extend between the fourth side 305 of the second contact portion 65 and the fifth side 325 of the second contact portion 65 facing the third side 175 and are formed in an elongated manner.

A second portion 315 adjoining the first portion 300 on the upper side is arranged on the upper side of the second contact portion 65 and engages behind the second contact portion 65, the second portion 315 extending up to the end 230 of the first holding element 145. In this case, the second portion 315 at least partially engages the first notch 250. The second portion 315 may be molded by a crimper, for example, in a crimping operation. In this case, the second portion 315 extends in the direction of the third side 175 in the transverse direction and thus also in the direction of the second holding element 150 and the fourth holding element 160.

In an embodiment, the first portion 300 and the second portion 315 are formed in a curved manner. Of course, it is also contemplated that the first portion 300 extends substantially perpendicular to the first contact surface 115 and the second portion 315 extends substantially parallel to the first contact surface 115. The arrangement may also be manufactured by a crimping method, for example.

The advantage of the configuration shown in fig. 7 is that the complete configuration of the first part 300 and the second part 315, in particular the curved configuration of the second part 315, is guided substantially through 360 °, forming a kind of helical spring by which the second contact part 65 is pushed in the direction of the first contact part 60. This configuration thus ensures, on the one hand, a low contact resistance between the first yarn 40 and the contact surfaces 115, 135. Furthermore, a clamping action of the contact surfaces 115, 135 with respect to the fabric 15 can thereby also be ensured, so that an unintentional slipping of the fabric 15 out of the clamping area between the first and second contact surfaces 115, 135 can be reliably prevented.

To ensure a particularly good fixation of the second contact portion 65 to the first contact portion 60, the second holding element 150 is also guided laterally by the third portion 320 of the second holding element 150 over the fifth side 325 of the second contact portion 65. The fifth side 325 is arranged parallel to the fourth side 305. The fifth side 325 is arranged on a side of the second contact portion 65 facing the third side 175. The fifth side 325 is preferably arranged vertically above the third side 175. In this case, the third portion 320 abuts the second fixed end 180 of the second retaining element 150.

The fourth portion 330 of the second holding member 150 is disposed at a side remote from the second fixed end 180, is formed in a curved manner, and rolls 360 °. In this case, the fourth portion 330 engages with the second notch 255 of the second contact portion 65. The fourth portion 330 extends in the direction of the fourth side 305 and the first and third retaining

elements

145, 155.

Likewise, the third and fourth retaining

members

155, 160 engage around the second contact portion 65 and engage with the third and

fourth notches

260, 265, respectively, that are dispensed. By means of the offset engagement of the holding

elements

145, 150, 155, 160 with the

notches

250, 255, 260, 265, 275, respectively, which are arranged offset in the longitudinal direction, a reliable connection to the first contact portion 60 can be ensured on both sides of the second contact portion 65. In this case, the first portion 300 (and the third retaining element 155) is engaged by the first notch 100 and the third portion 320 (and the fourth retaining element 160) is engaged by the second notch 105 of the fabric 15. As a result, the fabric 15 is additionally connected to the fabric contact device 20 in a form-fitting manner. Furthermore, electrical contact between the holding

elements

145, 150, 155, 160 and the second electrode 85 and/or the second secondary electrode 90 is thus avoided.

Fig. 8 illustrates a flow chart of a method for manufacturing the system 10 illustrated in fig. 1-7. Fig. 9 shows a side view of the fabric contact device 20 during a first method step 405. Fig. 10 shows a plan view of the fabric 15 after the second method step 410. Fig. 11 shows a side view of the system 10 during a third method step 415. Fig. 12 shows a side view of the system 10 during a fourth method step 420. Fig. 13 shows a side view of the system 10 during a fifth method step 425. Fig. 14 shows a side view of the system 10 during a sixth method step 430. Fig. 15 shows a side view of the system 10 during a seventh method step 435. Fig. 16 shows a side view of the system 10 during a seventh method step 440. Fig. 17 shows a cross-sectional view of the front view of the system 10 after the eighth method step 440. Fig. 18 shows a cross-sectional view of a front view of a variant of the system 10 after the eighth method step 440. Fig. 19 shows a side view of system 10 during seventh method step 445.

In a first method step 405 (see fig. 9), the fabric contact device 15 is positioned on an anvil 335 of the manufacturing machine. In this case, the second contact portion 65 is located at the second position.

In a second method step 410 (see fig. 10), the

recesses

100, 105 are introduced laterally into the fabric 15, for example by a stamping operation, with respect to the first and/or second

fabric contact areas

51, 86. In this case, one or more

secondary electrodes

55, 90 may be interrupted by the

recesses

100, 105 such that the respective secondary electrode is deactivated. The

recesses

100, 105 may have a width of 3mm and a longitudinal extent of 15mm, for example in the transverse direction.

In a third method step 415 (see fig. 11) following the second method step 410, the fabric 15 is positioned relative to the fabric contact device 20 such that the first recess 100 is located above the first and third retaining

elements

145, 155 and the second recess 105 is located above the second and fourth retaining

elements

150, 160.

In a fourth method step 420 (see fig. 12) following the third method step 415, the fabric 15 is pushed onto the first contact part 60, for example by means of the first tool 340, such that the fabric 15 is located on the underside of the first contact surface 115. In this case, the retaining

elements

145, 150, 155, 160 engage through the respective assigned

recesses

100, 105.

In a fifth method step 425 (see fig. 13) following the fourth method step 420, the fabric contact device 20 is separated from the conveyor belt 200 at the connection portion 195, for example by stamping.

In a sixth method step 430 (see fig. 14) following the fifth method step 425, the second contact portion 65 is bent from the second position to the first position by means of the second tool 345. As a result, the first and

second contact portions

60, 65 are arranged parallel to each other and the fabric 15 is arranged between the two

contact portions

60, 65.

In a seventh method step 435 (see fig. 15) following the sixth method step 430, the anvil 340 is heated to a predetermined temperature by a heating device, not shown, at least in the sub-region 350 below the fabric contact device 20. The predetermined temperature is greater than the melting temperature of the second yarn 45 and preferably greater than the melting temperature of the solder. In this regard, the subregion 350 is preferably heated to a temperature of about 250 ℃ and at least greater than 232 ℃. As a result, the second substance of the second yarn 45 and the third substance of the flux are fused. By means of the holding force F acting perpendicularly on the contact surfaces 115, 135, the second contact portion 65 is pushed back in the direction of the first contact portion 60 and the second substance is at least partly displaced between the projection 270 and the first contact surface 115, whereby the second contact surface 135 and preferably the first contact surface 115 is in direct contact with the first yarn 40. The third substance forms a material connection, in particular a braze connection, upon contact between the first contact surface 115 and the first yarn 40 and upon contact between the first yarn 40 and the second contact surface 120. In addition, the second substance flows up into the further recess 275 and into the first recess(s) 125 in the first contact surface 115.

In an eighth method step 440, the eighth method step 440 is performed at least partially in time parallel to the seventh method step 435 (see fig. 16), the holding

elements

145, 150, 155, 160 being crimped again by the compression mold 355, so that the holding

elements

145, 150, 155, 160 engage behind the second contact part 65 on the upper side. The retention force F may be provided by the die 355 rather than by the second tool 345.

In this case, as shown in fig. 17, the second portion 315 may be arranged to directly border the fourth side 305 and/or the fourth portion 330 may be arranged to directly border the fifth side 325, or, as shown in fig. 18, the second portion 315 and/or the fourth portion 330 (still referring to fig. 17) may be arranged to be inwardly offset with respect to the respective fourth side 305 and fifth side 330.

In a ninth method step 445, the subregion 350 is cooled, so that the system 10, in particular the melted second and/or third substance, is actively cooled and solidifies particularly rapidly by the subregion 350. The holding force F is further held.

In a tenth method step 450, following the ninth method step 445, the holding force F is withdrawn and the fully contacted system 10 is removed from the manufacturing machine.

It is particularly advantageous that both fabric contact devices 20 are positioned simultaneously in the manufacturing machine such that one fabric contact device 20 contacts the first fabric contact area 51 and the other fabric contact device 20 contacts the second fabric contact area 86. As a result, the method depicted in fig. 8 can be performed particularly simply and inexpensively to produce the system 10.

Furthermore, method steps 405 to 450 may also be performed in a different order than described above. In addition, cooling of the sub-region 350 may also be omitted.

List of reference numerals

10 system, heating system

15 fabrics

10 fabric contact device

25 edge of

30 first fabric portion

Second fabric portion 35

40 first yarn

45 second yarn

50 first electrode

51 first fabric contact area

55 first secondary electrode

60 first contact area

65 second contact area

70 hinge

75 pivot axis

80 third fabric portion

85 second electrode

86 second fabric contact area

90 second secondary electrode

95 resistance electrode

100 first notch

105 second recess

106 waveform profile

110 first upper side

115 first contact surface

120 First side (of first contact portion)

125 first concave part

130 underside of

135 second contact surface

140 holding device

145 first holding element

150 second holding element

155 third holding element

160 fourth holding element

165 A second side (of the first contact portion)

170 A first fixed end (of the first holding element)

175 A third side (of the first contact portion)

180 A second fixed end (of the second holding member)

185 A third fixed end (of the third holding member)

190 A fourth fixed end (of the fourth holding member)

195 connection portion

200 conveyer belt

a1 first minimum interval

a1 second minimum interval

205 second recess

210 abutment portion

215 electrical conductor

220 cable

225 third recess

230 The end of the (holding element)

235 lower region

240 upper region

245 second upper side

250 first notch

255 second gap

260 third notch

265 fourth notch

270 projection

275 another notch

280 another area

285 inclined plane

290 fabric upper side

295 underside of fabric

300 First portion (of first retaining element)

305 fourth side

310 gap

315 Second portion (of first holding element)

320 Third portion (of second retaining element)

325 fifth side

330 Fourth part (of second holding element)

335 anvil

340 first tool

345 second tool

350 subregion

355 die

405 first method step

410 second method step

415 third method step

420 fourth method step

425 fifth method step

430 sixth method step

435 seventh method step

440 eighth method step

445 ninth method step

450 tenth method step

b first maximum range

t second maximum range

b1 third maximum range

Alpha angle

d thickness of material

Claims

1. A fabric contact device (20),

having a first contact portion (60), a second contact portion (65) and a holding means (140),

wherein the first contact portion (60) has a first contact surface (115) at a first upper side (110) facing the second contact portion (65), the second contact portion (65) has a second contact surface (135) at a lower side (130) facing the first contact portion (60),

Wherein a fabric (15) having at least one electrically conductive yarn (40) can be arranged between the first contact surface (115) and the second contact surface (135), and the first contact surface (115) and/or the second contact surface (135) are formed in contact with the electrically conductive yarn (40),

wherein the first contact portion (60) is connected to the second contact portion (65) on a first side (120) by means of a hinge (70),

the holding device (140) has at least one first holding element (145),

wherein the first retaining element (145) is connected to the second side (165) of the first contact portion (60) at a first fixed end (170),

wherein a second portion (315) bordering the first portion (300) on the side of the first holding element (145) opposite the first fixed end (170) engages behind the second contact portion (65) and is connected to the first contact portion (60),

it is characterized in that the method comprises the steps of,

wherein the first holding element (145) is guided laterally by the first portion (300) bordering the first fixed end (170) over the second contact portion (65),

wherein the second contact portion (65) has at least one first cutout (250) formed by a wave-shaped contour (106) on a second upper side (245) arranged on a side of the second contact portion (65) remote from the first upper side (110),

Wherein the second portion (315) extends up to the end (230) of the first retaining element (145),

wherein the second portion (315) is arranged on a second upper side (245) of the second contact portion (65) and at least partially engages with the first notch (250).

2. The fabric contact device (20) according to claim 1,

wherein the second contact portion (65) is pivotable between a first position and a second position,

wherein in the first position the second contact portion (65) is folded against the first contact portion (60),

wherein in the second position, the second contact portion (65) is folded away from the first contact portion (60).

3. The fabric contact device (20) according to claim 1,

wherein the first retaining element (145) tapers from the first fixed end (170) to a distal end (230) of the first retaining element (145).

4. The fabric contact device (20) according to claim 1,

wherein the second contact surface (135) is formed in a wave-shaped manner,

and/or

The first contact portion (60) is formed in a plate-like manner,

wherein the first contact surface (115) is formed in a substantially planar manner.

5. The fabric contact device (20) according to claim 1,

wherein the holding device (140) has a second holding element (150),

wherein the second holding element (150) is connected to a third side (175) of the first contact part (60) by a second fixed end (180),

wherein the second holding element (150) is guided laterally beyond the second contact portion (65) by a third portion (320) bordering the second fixed end (180),

wherein a fourth portion (330) bordering a third portion (320) on the opposite side of the second holding element (150) from the second fixed end (180) engages behind the second contact portion (65) and connects the first contact portion (60) to the second contact portion (65).

6. The fabric contact device (20) according to claim 5,

wherein the second side (165) is arranged opposite to the third side (175),

wherein the first side (120) is arranged between the second side (165) and the third side (175),

wherein the second portion (315) extends at least partially in the direction of the second holding element (150) and the fourth portion (330) extends at least partially in the direction of the first holding element (145).

7. The fabric contact device (20) according to claim 6,

wherein the second contact portion (65) has a second recess (255) on a second upper side (245) which is arranged offset with respect to the first recess (250),

wherein the first notch (250) and the second notch (255) extend between a fourth side (305) of the second contact portion (65) facing the second side (165) and a fifth side (325) of the second contact portion (65) facing the third side (175) and are formed in an elongated manner,

wherein the second notch (255) extends parallel to the first notch (250),

wherein the fourth portion (330) engages the second notch (255).

8. The fabric contact device (20) according to any one of claims 1 to 7,

wherein the second contact portion (65) has at least two projections (270) spaced apart from each other on the underside (130),

wherein the projections (270) extend parallel to each other,

wherein a further gap (275) is arranged between the protrusions (270) for receiving the substance of the second yarn (45) of the fabric (15).

9. The fabric contact device (20) according to any one of claims 1 to 7,

having an abutment portion (210),

wherein the abutment portion (210) is connected to a first side (120) of the first contact portion (60),

Wherein the abutment portion (210) is electrically connectable to an electrical conductor (215) of a cable (220).

10. The fabric contact device (20) according to claim 9,

wherein the abutment portion (210) defines a recess (225) in the circumferential direction,

wherein the recess (225) is formed in a rectangular shape,

wherein the frame width of the abutment portion (210) is smaller than the maximum extent of the recess (225) in at least one spatial direction.

11. A system (10) for a motor vehicle,

comprising a fabric (15) and a fabric contact device (20),

wherein the fabric contact device (20) is formed according to any one of the preceding claims,

wherein the textile (15) has at least one first electrode (50) with at least one electrically conductive contact area,

wherein a contact area of the first electrode (50) is arranged between the first contact portion (60) and the second contact portion (65),

wherein at least one of the two contact surfaces (115, 135) is in electrical contact with the contact portion (60, 65),

wherein the first portion (300) engages through the fabric (15) and mechanically connects the fabric (15) to the fabric contact device (20).

12. The system (10) according to claim 11,

Wherein the fabric (15) has a first yarn (40) and at least one second yarn (45),

wherein the fabric (15) has a first fabric portion (30), a second fabric portion (35) and a third fabric portion (80),

wherein the first yarn (40) has an electrically conductive substance and the second yarn (45) has an electrically insulating substance,

wherein, to form the first electrode (50), the first yarn (40) and the second yarn (45) are interwoven in a first fabric portion (30) of the fabric (15),

wherein, in order to form a second electrode (85), the first yarn (40) and the second yarn (45) are interwoven in a third fabric portion (80) arranged spaced apart from the first fabric portion (30),

wherein only the second yarns (45) are interwoven in a second fabric portion (35) arranged between the first fabric portion (30) and the third fabric portion (80),

wherein the second fabric portion (35) electrically insulates the first fabric portion (30) from the third fabric portion (80),

wherein the fabric contact device (20) is arranged spaced apart from the second electrode (85),

wherein at least one recess (100) is introduced in the second fabric portion (35),

Wherein the first portion (300) engages through the recess (100).

13. A method for producing a system (10) according to any one of claims 11 to 12,

wherein a fabric contact device (20) and a fabric (15) are provided,

wherein the second contact portion (65) is positioned in a second position,

wherein the contact area of the first electrode (50) is positioned above the first contact portion (60),

wherein the first retaining element (145) is pushed through the fabric (15) such that the first portion (300) engages through the fabric (15),

wherein the second contact portion (65) is pivoted from the second position to the first position,

wherein the second contact portion (65) and the second contact surface (135) are located on and electrically contact the first contact region, and/or

Wherein the first contact region is located on and in electrical contact with a first contact surface (115) of the first contact portion (60),

it is characterized in that the method comprises the steps of,

wherein the second portion (315) of the first retaining element (145) is molded such that the second portion (315) is disposed on the second upper side (245) of the second contact portion (65) and at least partially engages the first notch (250).

14. The method according to claim 13,

Wherein the fabric contact device (20) is heated above the melting temperature and/or the glass transition temperature of the second substance,

wherein the second yarn (45) is melted between the first contact portion (60) and the second contact portion (65),

wherein the molten second substance is displaced by the projections (270) and the retaining force acting on the contact portions (60, 65),

wherein the second substance is flowed into the other gap (275),

wherein the second substance is solidified in the further gap (275).

15. The method according to claim 13 or 14,

wherein the second portion (315) of the first retaining element (145) is crimped.